Photographic-printing-machine frame



March 10, 1931. c. D. NEWTON ET- AL 1,796,213

PHQTOGRAPHIC PRINTING MACHINE FRAME Filed Jan. 22, 19 50 Shets-Sheet 1 Kai/17., Newza r7 Robe rza JeSz'Zra INVENTOR ATTORNEY March 10, 1931. c 1 NEWTON ET AL 1,796,213

PHOTOGRAPHIC PRINTING MACHINE FRAME I Filed Jan. 22, 1950 s Sheets-Sheet 3 Udrlfl A/ewzon Faber/oieS/hra INVENTOR ATTORNEY Patented Mar. 10, 1931 UNITED STATES PATENT OFFICE our. ID. NEWTON AND ROBERTO DE SILVA, OF SAN ANTONIO, TEXAS; sen) n! SILVA ASSIGNOR To SAID NEWTON PHOTOGRAPHIC-PRINTING-MACHINE FRAME Application filed January 22, 1980.

This invention relates to a frame for use in a photographic printing machine, such as that forming the subject matter of a patent granted to fioberto de Silva, on January 21,

J 1930, No. 1,744,621.

' The general object of this invention is to provide means whereby a film or plate can be easily and quickly placed in position in the machine and sensitized paper or the like 510 placed over the same to secure prints from the negative in the minimum amount of time.

Another object of the invention is to provide a glass plate having a centrally ar- 1 5 ranged transparent partwith the rest of the plate opaque, on which the negatives are placed, with means for adjustably connecting the plate"with a metal frame adapted to be placed in the opening above the light chamher of the machine and a hinged frame for holding the negative on the glass plate, with the sensitized paper fitting in the hinged frame so that it will be pressed against the negative when the presser assembly of the machine is lowered.

Another object of the invention is to provide an adapter frame which fits in the hinged frame when smaller negatives are to be printed, with means carried by the adapter i130 frame for holding a negative under the same.

This invention also consists in certain other features of construction and in the combination and arrangement of the several 7 .35 parts, to be hereinafter fully described, illus- Serial No. 422,604.

fore mentioned application and showing the invention in use.

Figure 2 is a top plan view of part of Figure 1.

Figure 3 is a section on line 33 of Figure 2.

Figure 4 is a perspective view of the hinged frame.

Figure 5 is a perspective View of the adapter frame.

Figure 6 is a view of the transparent plate.

Figure 7 is a plan View showing the invention in use without an adapter frame.

Figure 8 is a side view of Figure 7.

Figure 9 is a perspective View of the main frame shown in Figure 7.

As stated in the before mentioned patent, the machine A has a lamp chamber therein from which the rays of light pass through an opening a in the front part of the top of the machine, with a presser assembly 13 for pressing the sensitized paper against a negative supported over the opening, the current to the lamps being turned on when the presser assembly is lowered.

In carrying out the invention, a flat frame 1 of substantially rectangular shape fits in the countersink of the opening a and has slots I 2 in its ends. A glass plate 3, having a ccn' tral transparent part 4 and opaque side parts 5, is adjustably fastened to the frame 1 by the screws 6 which pass through the ends of the plate and through the slots 2 of the frame. Thus by loosening the nuts of the bolts, the glass plate can be adjusted on the frame.

An elongated projection 7 is formed on the upper edge of the frame 1 and has a slot 8 passing through its longitudinal center. A hinge pin 9 passes through the slot and through the perforated ears 10 on the hinge frame 11 so that the frame 11 is hinged to the frame 1 and said frame 11 will rest on the plate 3 and by having the hinge pin passing through a slot, said plate 11 can adjust itself to negatives of different thicknesses. Upturned fingers 12 are formed on the lower edge of the plate 11 and by making the plate 3 adjustable, as disclosed above, its transparent part 4 can be properly positioned with respect to the opening in the frame 11. One or more tongues 11' extend inwardly from the frame 11 as shown in Figure 9.

Thus it will be seen that said frame 11 can be lifted so as to place a negative on the glass plate and under said frame, care being taken to aline the negative with the opening in the frame. Then the frame is lowered upon the negative and a sheet of sensitized material cut to fit the opening in the frame is placed in the frame. The presser member is then lowered to place its pad upon the paper so as to press the paper against the negative and, as described in the before mentioned patent, the lowering of the presser member will light the lamp and thus cause the picture on the negative to be printed on the sensitized paper. The use of one or more tongues 11' enables a. single negative to be placed under the frame as said negative or film will be held by the fingers or tongues. The opening in the frame is so proportioned that it will receive and hold against excessive side movement a sheet of paper and by properly alining the parts the picture image will be properly located on the sheet and thus oviate the necessity of an additional trimming of the print or sheet.

A number of adapter frames, such as shown at 13, are provided with difi'erent sized openings 16 to receive different sizes of sensitized sheets. Each frame is proportioned to fit in the opening of the frame 11 and has flanges 14: thereon to overlap the frame 11 with the lower part of said frame 13 resting on the plate 3. Each adapter frame has its opening 16 proportioned to receive and hold against excessive side movement a sensitized sheet and each frame is provided with one or more thin tongues 15 extending into the openings 16 to hold a negativeagainst the plate 3 particularly when single films are used though said tongue or tongues are of assistance when a strip of negatives is being printed.

Thus by using the proper sized adapter frame different sizes of negatives can be printed by the device, the larger size negatives being printed on sheets placed in the frame 11 but when the smaller sizes are to be printed adapter frames such as that shown at 13 are used with the frame '11. As will be seen the adapter frame is lifted with the frame 11 when said frame is lifted to place a negative in printing position.

It will, of course, be understood that different sizes of presser pads must be used for the different sizes of sheets of paper being printed upon.

Figures 1, 2 and 3 show the device bein used with an adapter frame While Figures and 8 show the device in use without the adapter frame. If desired the tongues 011 the frame 11 may be omitted when said frame is always used with an adapter frame.

What we claim is 1. In combination with a photographic printing machine having a countersunk opening therein, a frame having an opemng therein for fitting in said countersunk opening in the machine, a glass plate having a central transparent part and opaque side parts,means for adjustably connecting the plate with the frame and a hinged frame having an opemng therein for holding a negative on the glass plate. 7 V

2. In combination with a photographic printing machine having a countersunk opening therein, a frame having an opening therein for fitting in said countersunk opening in the machine, a glass plate having a central transparent part and opaque side parts, means for adjustably connecting the plate with the frame and a hinged frame having an opening therein for holding a negative on the glass plate, the pin of the hinge passing through an elongated opening in one of the hinge'parts whereby the frame can accommodate itself to different thicknesses of negatives.

3. In combination with a photographic printing machine having a countersunk opening therein, a frame having an opening therein for fitting in said countersunk opening in the machine, a glass plate having a central transparent part and opaque side parts, means for adjustably connecting the plate with the frame, a hinged frame having an opening therein for holding a negative on the glass plate and an adapter frame removably fitting in the hinged frame.

4:. In combination with a photographic printing machine having a countersunk open ing therein, a frame having an opening therein for fitting in said countersunk opening in the machine, a glass plate having a central transparent part and opaque side parts, means for adjustably connecting the plate with the frame, a hinged frame having an opening therein for holding a negative on the glass plate, an adapter frame removably fitting in the hinged frame'and an inwardly extending lip on the adapter frame.

5. In combination with a photographic printing machine having a countersunk opening therein, a frame having an opening therein for fitting in said countersunk opening in the machine, a glass plate having a central transparent part and opaque side parts, means for adjustably connecting the plate with the frame, a hinged frame having an opening therein for holding a negative on the glass plate, an inwardly extending finger or tongue carried by the hinged frame for engaging a negative, said opening in the hinged frame being proportioned to receive a sheet of sensitized material.

6. In combination with a photographic printing machine, a frame having an opening 5 therein and hinged to the machine and adapted to be placed over a negative, a number of adapter frames having different size openings therein, each frame being proportioned to fit in the opening of the first frame, the opening in each adapter frame receiving a sheet of sensitized material whereby trimming of the sheet is rendered unnecessary.

In testimony whereof We afiix our signatures. CARL D. NEWTON.

ROBERTO DE SILVA. 

